interaction

American  

[in-ter-ak-shuhn] / ˌɪn tərˈæk ʃən /

noun

1. reciprocal action, effect, or influence.

2. Physics.

   1. the direct effect that one kind of particle has on another, in particular, in inducing the emission or absorption of one particle by another.

   2. the mathematical expression that specifies the nature and strength of this effect.

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interaction British  

/ ˌɪntərˈækʃən /

noun

1. a mutual or reciprocal action or influence

2. physics the transfer of energy between elementary particles, between a particle and a field, or between fields See strong interaction electromagnetic interaction fundamental interaction gravitational interaction weak interaction electroweak interaction

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Other Word Forms

• interactional adjective

Etymology

Origin of interaction

First recorded in 1825–35; inter- + action

Example Sentences

It also limits potentially uncomfortable in-person interactions and can help people feel more confident once they head to the dealership.

From The Wall Street Journal

If exposure happened more than a week ago, non-immune people should stay home and limit interactions for 21 days after being exposed, according to the release.

From Los Angeles Times

These virtual assistants can run tasks on your own device, such as sending WhatsApp messages or manage your calendar, with little human interaction.

From BBC

“Jazz tradition is very much about being very present and in the moment and interacting with other members of the band and creating space in the music for that kind of interaction,” he said.

From Los Angeles Times

“I can handle a brief interaction with a cat, but once it’s more than 45 minutes in an enclosed space, I start to experience an allergic reaction,” the mayor said.

From The Wall Street Journal

Related Words

• communication
• cooperation
• synergy